ORGANOMETALLIC CHEMISTRY

Paper Code: 
CHY 322
Credits: 
4
Contact Hours: 
60.00
Max. Marks: 
100.00
Objective: 

Course Objectives :

The course aims to develop a vast knowledge about different reactions leading to the formation of various organometallic complexes and the mechanism involved in homo- and heterogeneous catalysis, to make the students learn about the various applications of organometallic complexes in catalysis and to acquaint them with the promising future of organo-transition metal chemistry in industrial, biological and environmental fields.

Course Outcomes (COs):

Course Outcomes

Teaching Learning Strategies

Assessment Strategies

  
 

On completion of this course, the students will be able to-

CO97-classify and discuss the systematic nomenclature of organometallic compounds.

CO98- calculate valence electron counts in organometallic compounds

CO99- discuss the symmetry, structure and bonding of M-C s bonded and M-C multiple bonded organometallic compounds

CO100- describe in detail the reaction mechanisms of various homogeneous and heterogenous catalysts.

CO101- differentiate between terminal and bridging carbonyls and will be able to interpret the type of bonding on the basis of IR spectra.
  • Interactive lectures
  • Discussion
  • Tutorials
  • Multimedia presentations
  • Written test
  • Google quiz
  • Assignment

 

 

  
 

 

10.00
Unit I: 
Introduction to Organometallic Compounds

Types of transition metal to carbon bonds, classification of organometallic compounds  based on hapticity and polarity of M-C bond, nomenclature and general characteristics, electron counting (16 and 18 electron rules), routes of synthesis for s-alkyls and aryls of transition metals, stability of organometallic compounds and decomposition pathways.

 

10.00
Unit II: 
Metal-Carbon Multiple Bonded Organometallics-I

Preparation, properties, structure and bonding of carbene and carbyne complexes (both Fischer and Schrock types), nucleophilic and electrophilic reactions on the ligands, role in organic synthesis.

13.00
Unit III: 
Metal-Carbon Multiple Bonded Organometallics-II

Preparation, properties, structure and bonding of n4- diene complexes, n5- dienyl mplexes, n6- arene complexes, fluxionality and dynamic equilibria in such as n2- olefin,  n3-allyl and n5-dienyl complexes.

15.00
Unit IV: 
Catalysis by Organotransition Metal Complexes

Principles and important reactions of transition metal organometallics- co-coordinative unsaturation, oxidative addition, insertion and product isolation(reductive elimination and β- elimination).
Homogeneous catalysis- hydrogenation of alkenes, hydrosilylation of alkenes, metathesis of alkenes, oligomerization and polymerization of alkenes and alkynes, hydroformylation of alkenes, acetic acid synthesis and other carbonylation reactions, oxidation reactions of alkenes.
Heterogeneous catalysis- Fischer Tropsch process- Methanation reaction, synthesis of methanol, gasoline  production, water gas shift reaction, role of ZnO/Cr2O3 in the reaction, acetic acid synthesis, role of CO catalyst.

12.00
Unit V: 
Metal π-Complexes

Metal carbonyls- preparation, properties, structure and bonding with special reference to dinuclear and polynuclear carbonyls, vibrational spectra of metal carbonyls (bridging and terminal) for bonding and structural elucidation, metal carbonyl clusters.
Dinitrogen and dioxygen complexes- preparation, properties, structure and bonding.

 

Essential Readings: 
  • Organometallic Chemistry: A Unified Approach, Second Edition; R.C. Mehrotra, A.Singh; New Age International Private Limited, New Delhi, 2000.
  • Inorganic Chemistry, Fifth Edition; G. L. Miessler, D. A. Tarr; Pearson Education Inc. Singapore, 2013.
  • Inorganic Chemistry (Principle of Structure and Reactivity), Fourth Edition; J. E Huheey, E. A. Keiter, R. L. Keiter; Pearson India, New Delhi, 2013

 

References: 

SUGGESTED READINGS:

  • The Organometallic Chemistry of the Transition Metals, Fourth Edition; R. H. Crabtree;  John Wiley and Sons, Inc., New Jersey, 2005.
  • Advanced Inorganic Chemistry, Sixth Edition; F.A. Cotton, G. Wilkinson, C.A. Murillo, M. Bochmann; John Wiley and Sons, USA, New York, 2007.

e-RESOURCES:

 

Academic Year: 
2022-2023
  • Printer-friendly version
  • PDF version